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. 2020 Apr 20;6(3):148–157. doi: 10.1136/bmjstel-2018-000353

Table 5:

E1–E3 nursing performance during simulation

Table E1: nursing completion of key practice guidelines for impella patient during simulation sessions (n=9)
Task Complete Incomplete
Two-dimensional (2D) echo verification of placement
 Simulation #1 11% (1) 89% (8)
 Simulation #2 100% (9) 0% (0)
CM marking verified
 Simulation #1 44% (4) 55% (5)
 Simulation #2 100% (9) 0% (0)
Tightening of Toughy Borst valve
 Simulation #1 0% (0) 100% (9)
 Simulation #2 78% (7) 22% (2)
Transfer to standard configuration
 Simulation #1 89% (8) 11% (1)
 Simulation #2 89% (8) 11% (1)
Purge solution verified and hung
 Simulation #1 0% (0) 100% (9)
 Simulation #2 78% (7) 22% (2)
Table E2: average time to complete critical tasks for Impella patient during simulation (n=9)
Activity Simulation 1 Simulation 2
2D echo verification 5 min 32 s 1 min 32 s
CM marking 5 min 13 s 3 min 55 s
Standard configuration 4 min 3 s 4 min 20 s
Purge solution verified No groups fully completed* 2 min 18 s
Purge solution hung No groups fully completed* 3 min 13 s
Table E3: nursing recognition and management of alarms for impella patient during simulation sessions (n=9)
Recognised alarm
(suction, aorta/ventricle)
Correctly identified cause of alarm Correct identification of action(s) to resolve alarm Notified physician with recommendation Notified physician without recommendation
Simulation #1 100% (9) 33% (3)
(suction alarms only)
33% (3)
(suction alarms only)
33% (3)
(suction alarms only)
67% (6)
Simulation #2 100% (9) 100% (9) 100% (9) 100% (9) 0% (0)

*During simulation #1, all groups partially completed the task of verifying the purge solution change to dextrose plus heparin by simply hanging the solution. However, none of groups changed the information in the Impella console; therefore, the console remained programmed as having only dextrose infusing as the purge solution and would not recognise or calculate the amount of heparin in use and delivered to the patient.